SU1035125A1 - Method for erecting water head structures using local materials - Google Patents

Description

The invention relates to methods for the construction of pressure structures from local materials such as dams, dams, using means of hydromechanization.

There is a known method of erection of land pressure structures, including one-sided layer-by-layer inhaling of soil with a device on the upper slope instead of rolling in wattle rows, which ensure the formation of an impervious screen 1 through clogging.

The disadvantage of this method is the need for significant costs of manual labor and materials for arranging the weave rows and securing the upper slope.

The closest to the invention is a method of erecting pressure constructions made of local materials, consisting in a one-sided layer-by-layer alluviation of the soil with a preliminary device on the side of the embankment, using layers of gravel G2.

The disadvantage of this method is the unreliability of the structure, since clogging of gravel material forms layers of small soil particles that break the integrity of the coating. In addition, to prevent pulp overflow onto the slope, longitudinal rollers are provided, the design of which complicates the work and requires additional costs.

The purpose of the invention is to simplify the work technology and increase the reliability of the structure.

This goal is achieved by the fact that one-sided washing of each layer is carried out simultaneously with a portion of the clarified pulp overflowing through embankment, the latter being made of layers of gravel placed on the external slope of previously made dams from the ground.

FIG. 1 shows a schematic of the alluvion structure; a plan; FIG. 2 is a section A-A in FIG. one.

The method is carried out as follows.

The flush site is divided into flush 1 maps by arranging dam 2 from the lower slope 3 of structure 4, longitudinal dams 5 and dam b from the upper slope 7 of structure 4. At the same time, the upper slope 8 of dam 6 is planned and a covering 9 of it is laid on it gravel material with a constant level of ridge 10; Moreover, the dam 6 of embankment of map 1, depending on the soil conditions, can be erected from alluvial as well as imported soil.

After the map 1 is rolled, they start laying the soil into it with a one-sided alluvium of pulp from the distribution slurry pipeline 11 located at the lower slope 3 of the structure 4. Discharge of clarified water

5 from the settling pond 12 is produced through the well 13 through the collector 14 into the waste ditch 15, through which it can be fed into the pit of hydro-mechanized development

0 soil. Simultaneously with a reset

of the clarified pulp through the ridge 10 along the top of the gravel surface, a part of the pulp flow is passed through. When this happens, a gravel cob matting occurs. 16

fine particles of soil contained in the clarified pulp and their deposition at the bottom of the upper escarpment 7 in the form of a hollow 17. Consumption of the clarified pulp through the ridge 10

 is adjusted by the level of water 18 in the settling pond 12. The position of the water level 18 is determined by the pitomm wells 13.

5 After the card 1 is soiled, the pulp is switched to the adjacent card 19, in which the laying of the soil and the clogging of the gravel surface are carried out in the same sequence,

As a result of bypassing a part of the clarified pulp containing fine soil particles along the top of the gravel surface, the quality of clogging and hardening of the coating is improved, and also the formation of pumping clay deposits in the form of a drape, positively influencing the decrease in filtration through the substrate, occurs at the foot of the uphill slope. As a result of applying the proposed method for the construction of dams, the cost of 1 km of the dam is 4,230 thousand rubles, against 4,480 thousand rubles. by known technology.

Claims (1)

METHOD 02D 17/18, 1952. USSR certificate 02 V 7/06, 09/08.80 Head ESTABLISHMENTS> CONSTRUCTIONS FROM LOCAL * MATERIALS consisting in a one-sided layer-by-layer alluvial soil with a preliminary device from the upper slope of the debris using gravel layers, characterized in that, in order to simplify the technology of work and increase the reliability of the structure, one-sided alluvial coating of each layer · is carried out simultaneously with overflow parts of the clarified pulp through deboning, the latter being made of gravel layers placed on the external slope of previously made dams of soil