Mixed riprap sand foundation without cement for house and its producing method

Abstract

The present invention relates to the foundation for multi-storey mixed brick structure building and its construction method, and the foundation for bearing the upper load consists of riprap and mixed sand and no cement. The construction process includes the steps of digging foundation grooves in the solid size; connecting water pipe to the foundation grooves; spreading mixed 5-8 cm thick sand layer inside the grooves and one riprap layer; spreading one other mixed sand layer; flushing water to deposit sand; and repeating the fore said steps until to the top of the foundation. The building foundation has its pressure born by both the bottom and the sides and is cheap, short in construction period, and has many other advantages.

Description

technical field [0001] The invention relates to a construction method of a multi-storey brick-concrete structure building foundation in the technical field of buildings. Background technique [0002] The largest amount of new construction in my country's construction field is multi-storey brick-concrete structure houses with 2 to 5 floors, and hundreds of millions of square meters are newly built every year. However, the traditional cement mortar masonry strip foundation (or strip foundation) ). The construction process of the traditional brick-concrete structure cement mortar masonry rubble foundation is quite complicated. The main steps are: 1. Digging the foundation groove according to the designed size. Since the artificial masonry rubble requires room for operation, the section of the foundation groove excavated is inverted. Trapezoidal, which is much larger than the size of the foundation entity; 2. After the cement mortar rubble foundation is built, the operation spac...

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Problems solved by technology

The construction process of the traditional brick-concrete structure cement mortar masonry rubble foundation is quite complicated. The main steps are: 1. Digging the foundation groove according to the designed size. Since the artificial masonry rubble requires room for operation, the section of the foundation groove excavated is inverted. Trapezoidal, which is much larger than the size of the foundation entity; 2. After the cement mortar rubble foundation is built, the operation space on both sides needs to be backfilled and filled in layers; 3. In terms of material selection, sand cannot be mixed sand and needs to be screened. The rubble needs to be trimmed manually, and there is a lot of waste; 4. The amount of cement is large

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