Moisturizing mortar, pile drilling, pile body, concrete, green energy-saving construction technology

Abstract

The present invention provides a moisture-retaining mortar, pile body drilling, pile body, concrete, and green energy-saving construction process, which can be adapted to areas with low water content in underground soil layers, and improve the strength of the pile body after construction in this area. The moisture-retaining mortar, calculated by weight component ratio, includes: 100 parts of cement, 300-600 parts of sand material, 80-150 parts of water, 5-10 parts of foaming glue, and 8-15 parts of water retaining agent; the moisture-retaining pile body drilling includes a hole body, and the inner wall of the hole is sprayed with the above-mentioned mortar moisture-retaining layer. The moisture-retaining pile body includes a pile body, and the periphery and bottom of the pile body are surrounded by the above-mentioned mortar moisture-retaining layer. The green energy-saving construction process includes the following steps: (1) drilling; (2) spraying the mortar moisture-retaining layer; (3) pile body construction.

Description

Technical Field

[0001] The invention relates to the technical field of pile bodies for underground space development, and in particular to a moisture-retaining mortar, pile body drilling, pile body, concrete, and a green energy-saving construction process. Background Art

[0002] With the advancement of construction technology, land shortage and other comprehensive factors, the development of underground buildings has entered a boom. The common feature of deep foundations and underground buildings is that they both use underground space as a space carrier, which has put forward higher requirements for underground pile foundations. For northern regions such as Henan and Shaanxi, most of them are water-scarce areas with water shortage in the soil layer. In the construction of underground piles, due to the water shortage in the soil layer, the soil layer absorbs the moisture in the concrete after the pile concrete is introduced into the drilled hole, which leads to excessive loss of moisture in the concrete, resulting in premature solidification of the concrete, prone to cracking, etc., affecting the strength of the concrete.

[0003] Based on this background, this design proposes a moisturizing mortar, pile drilling, pile body, concrete, and green energy-saving construction process. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, meet the actual needs, and provide a moisture-retaining mortar, pile drilling, pile, concrete, and green energy-saving construction process, which can be adapted to areas with low water content in the underground soil layer and improve the strength of the pile after construction in this area.

[0005] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0006] Disclosed is a moisture-retaining mortar, which comprises, by weight component ratio, 100 parts of cement, 300-600 parts of sand material, 80-150 parts of water, 5-10 parts of foaming glue, and 8-15 parts of water retaining agent.

[0007] Also disclosed is a moisture-retaining pile body drilling hole, comprising a hole body, wherein the inner wall of the drilling hole is sprayed with the above-mentioned mortar moisture-retaining layer.

[0008] Also disclosed is a moisture-retaining pile body, comprising a pile body, wherein the periphery and bottom of the pile body are surrounded by the above-mentioned mortar moisture-retaining layer.

[0009] Also disclosed is a moisture-retaining pile concrete, which is used to prepare the moisture-retaining pile. The concrete comprises, by weight component ratio, 100 parts of cement, 200-300 parts of aggregate, 100-300 parts of sand material, and 10-15 parts of water retaining agent.

[0010] A green energy-saving construction process is also disclosed, comprising the following steps:

[0011] (1) Drilling with a pile driver equipped with casing;

[0012] (2) Remove the pile driver drill bit from the borehole and lower the mortar injection pipe nozzle to the bottom of the borehole;

[0013] (3) Lift the casing upward and keep the bottom of the casing 1-3 meters away from the bottom of the borehole;

[0014] (4) lowering the nozzle of the mortar spraying pipe to the bottom of the borehole and spraying the moisture-retaining mortar on the inner wall of the borehole below the lower end of the casing to form the mortar moisture-retaining layer;

[0015] (5) The nozzle of the mortar spraying pipe is lifted upward at a uniform speed in the borehole. When the nozzle of the mortar spraying pipe approaches the bottom of the casing, the casing is lifted upward at a uniform speed and a gap of 1-3 meters is maintained between the bottom of the casing and the nozzle of the mortar spraying pipe until the casing is lifted out of the borehole. The nozzle of the mortar spraying pipe completes spraying on the inner wall of the borehole.

[0016] (6) Perform one of the following steps:

[0017] (a) placing the moisture-retaining pile body concrete in the borehole to form a plain concrete pile after solidification, i.e., the moisture-retaining pile body;

[0018] (b) placing the moisture-retaining pile body concrete in the borehole, and then placing a steel cage into the concrete in the borehole to form a reinforced concrete pile after solidification, i.e., the moisture-retaining pile body.

[0019] The beneficial effects of the present invention are:

[0020] The design has advanced technology. Through the construction of the invention, the problem that the water content in the underground soil layer in the northern region is low, resulting in the absorption of moisture in the concrete, causing the concrete to crack and reduce its strength can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main structure of the drilling and pile driver in the present invention;

[0022] Figure 2 It is a schematic diagram of the drilling structure in the present invention;

[0023] Figure 3 It is a schematic diagram of the moisture-retaining pile structure formed after the implementation of the present invention. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0025] Embodiment 1: A moisturizing mortar, which comprises, by weight component ratio: 100 parts of cement, 300 parts of sand, 80 parts of water, 5 parts of foamed glue, and 8 parts of water retaining agent. The mortar with the foaming agent added has not only environmental protection performance, but also thermal insulation and waterproof performance during use, and can play an excellent moisturizing performance through the foaming agent.

[0026] Example 2: A moisturizing mortar. The similarities with Example 1 are not repeated here. The difference is that, based on the weight ratio of components, it includes: 100 parts of cement, 600 parts of sand, 150 parts of water, 10 parts of foamed glue, and 15 parts of water retaining agent.

[0027] Example 3: A moisturizing mortar. The similarities with Example 1 are not repeated here. The difference is that, based on the weight ratio of components, it includes: 100 parts of cement, 350 parts of sand, 100 parts of water, 7 parts of foaming glue, and 9 parts of water retaining agent.

[0028] Example 4: A moisturizing mortar. The similarities with Example 1 are not repeated here. The difference is that, based on the weight ratio of components, it includes: 100 parts of cement, 500 parts of sand, 130 parts of water, 8 parts of foaming glue, and 13 parts of water retaining agent.

[0029] Example 5: A moisture-retaining pile body drilling, see Figure 2 , including a hole body, the inner wall of the borehole 2 is sprayed with a mortar moisturizing layer 3 as described in any one of Examples 1 to 4, the mortar moisturizing layer can form an isolation layer on the inner wall of the borehole to prevent the soil layer 1 from directly contacting the concrete introduced into the borehole, reduce the water loss rate of the concrete during solidification, and improve the later pile strength.

[0030] Example 6: A moisture-retaining pile, see Figure 3 , including a pile body 7, the periphery and bottom of the pile body are surrounded by a mortar moisturizing layer 3 as described in Example 5, the mortar moisturizing layer can form an isolation layer on the inner wall of the borehole to prevent the soil layer 1 from directly contacting the concrete introduced into the borehole, reduce the water loss rate of the concrete during solidification, and improve the later pile body strength.

[0031] Example 7: A moisture-retaining concrete for a pile body, used to prepare the moisture-retaining concrete as described in Example 6, comprises, by weight component ratio: 100 parts of cement, 200 parts of aggregate, 100 parts of sand, and 10 parts of a water-retaining agent. The water-retaining agent can lock in moisture during the maintenance period to retain water and slow down the setting, thereby effectively preventing cracking and avoiding excessive loss of water in the concrete. Together with the mortar moisturizing layer in Example 6, it can moisturize the moisture in the concrete in the pile body, thereby increasing its water content during maintenance and improving the strength of the pile body.

[0032] Example 8: A moisture-retaining concrete for piles, used to prepare the moisture-retaining concrete as described in Example 6, comprises, by weight component ratio: 100 parts of cement, 300 parts of aggregate, 300 parts of sand, and 15 parts of water-retaining agent.

[0033] Example 9: A moisture-retaining concrete for piles, used to prepare the moisture-retaining piles as described in Example 6, comprises, by weight component ratio: 100 parts of cement, 250 parts of aggregate, 200 parts of sand, and 13 parts of water-retaining agent.

[0034] Embodiment 10: A green energy-saving construction process for completing the construction of the moisture-retaining pile body described in Embodiment 6, and using the moisture-retaining pile body concrete described in any one of Embodiments 7-9, comprising the following steps:

[0035] (1) Drilling using a pile driver with casing 6;

[0036] (2) Remove the pile driver drill bit 4 from the borehole 2 and lower the mortar injection pipe nozzle to the bottom of the borehole;

[0037] (3) lifting the casing 6 upward and causing the bottom of the casing 6 to be spaced 1-3 meters from the bottom of the borehole 2;

[0038] (4) lowering the nozzle of the mortar spraying pipe to the bottom of the borehole and spraying the moisturizing mortar described in any one of Examples 1 to 4 onto the inner wall of the borehole below the lower end of the casing to form the mortar moisturizing layer;

[0039] (5) The nozzle of the mortar spraying pipe is lifted upward at a uniform speed in the borehole. When the nozzle of the mortar spraying pipe approaches the bottom of the casing, the casing is lifted upward at a uniform speed and a gap of 1-3 meters is maintained between the bottom of the casing and the nozzle of the mortar spraying pipe until the casing is lifted out of the borehole 2. The nozzle of the mortar spraying pipe completes spraying on the inner wall of the borehole, and the moisturizing pile drilling construction described in Example 5 is completed;

[0040] (6) Perform one of the following steps:

[0041] (a) placing concrete for a moisture-retaining pile body as described in any one of Examples 7-9 in a borehole, and forming a plain concrete pile after solidification, thus completing the moisture-retaining pile body as described in Example 6;

[0042] (b) placing the moisture retaining pile concrete of any one of Examples 7-9 into the borehole, and then placing a steel cage into the concrete in the borehole to form a reinforced concrete pile after solidification, thus completing the moisture retaining pile of Example 6.

[0043] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A green energy-saving construction process, comprising the following steps: (1) Drilling with a pile driver equipped with casing; (2) Remove the pile driver drill bit from the borehole and lower the mortar injection pipe nozzle to the bottom of the borehole; (3) Lift the casing upward and keep the bottom of the casing 1-3 meters away from the bottom of the borehole; (4) lowering the nozzle of the mortar spraying pipe to the bottom of the borehole and spraying the moisturizing mortar on the inner wall of the borehole below the lower end of the casing to form a mortar moisturizing layer; (5) The nozzle of the mortar spraying pipe is lifted upward at a uniform speed in the borehole. When the nozzle of the mortar spraying pipe approaches the bottom of the casing, the casing is lifted upward at a uniform speed and a gap of 1-3 meters is maintained between the bottom of the casing and the nozzle of the mortar spraying pipe until the casing is lifted out of the borehole. The nozzle of the mortar spraying pipe completes spraying on the inner wall of the borehole. (6) Perform one of the following steps: (a) placing concrete for a moisture-retaining pile body in a borehole, and forming a plain concrete pile after solidification, i.e., the moisture-retaining pile body; (b) placing the moisture-retaining pile body concrete in the borehole, and then placing a steel cage into the concrete in the borehole to form a reinforced concrete pile after solidification, i.e., the moisture-retaining pile body; The moisture-retaining concrete for piles comprises, by weight component ratio: 100 parts of cement, 200-300 parts of aggregate, 100-300 parts of sand, 10-15 parts of water retaining agent; The moisture-retaining mortar comprises, by weight component ratio, 100 parts of cement, 300-600 parts of sand material, 80-150 parts of water, 5-10 parts of foaming glue, and 8-15 parts of water retaining agent.

2. The green energy-saving construction process according to claim 1, characterized in that: The moisture-retaining mortar comprises, by weight component ratio, 100 parts of cement, 300 parts of sand material, 80 parts of water, 5 parts of foaming glue and 8 parts of water retaining agent.

3. The green energy-saving construction process according to claim 1, characterized in that: The moisture-retaining mortar comprises, by weight component ratio, 100 parts of cement, 600 parts of sand material, 150 parts of water, 10 parts of foaming glue and 15 parts of water retaining agent.

4. The green energy-saving construction process according to claim 1, characterized in that: The moisture-retaining mortar comprises, by weight component ratio, 100 parts of cement, 500 parts of sand material, 100 parts of water, 8 parts of foaming glue, and 13 parts of water retaining agent.

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