SU1714054A1 - Method for closed drainage construction and device for its accomplishment - Google Patents

Abstract

The invention relates to land reclamation and can be used in the construction of enclosed drainage systems. The goal; to isolate? 4 is to reduce the labor intensity and increase & gt & quality of the construction of drainage in opy0-1O11 (iX soil.) This includes the development of a trench with the removal of the soil beyond the limits of the trench. The trench is worked to a depth less than the depth of the drainage. This depth is determined by the depth of the flowing soil, then it is diluted by placing it along the walls of the trench. neck above the laid drainage pipe. The drain is filled with soil removed from the upper part of the trench. The final filling of the trench is made with the same soil mixed with the liquefied soil. The device for carrying out the method of laying the closed drainage contains a working body made in the form of attached to the side chains of cutting elements. On the driven shaft of the working body there are mounted blades for liquefying the gumming soil. An inter-double-sided chains set an additional chain with transport elements for carrying out from sustainable loosened soil. 2 sec. f-ly, 6 ill. SOS

Description

The invention relates to land reclamation and can be used in the construction of enclosed drainage systems. .

The known method and the plowing agent for trench laying horizontal closed drainage. The method includes a full-depth passage of the trench, performed by drainage drains, laying of drainage pipes with hydraulic insulation to the bottom of the trench, backfilling of the trench with laid drained excavated soil. The pit dredger consists of a chain digging authority for trench fragments, pipe laying trench

pipes with filter insulation, backfilling of trenches with excavated soil.

The drawback of the trencher is that the trenching capacity is low and the deterioration is low. quality drainage pads.

The most blatant to the invention is a method of constructing horizontal drainage, according to which trenches are developed to a depth shorter than the depth of laying the drainage, below the trench, the slit is made without discharging soil from it and water is injected into the lower part of the slit, and the drainage pipe with filter is laid

to the bottom of the trench. Water is supplied through a guide pipe along with a drainage pipe with a pressure filter interrupting the hydrostatic pressure of the clay slurry filling the trench.

The disadvantage of this method is the high labor intensity and low quality of the construction of drainage.

The purpose of the invention is to reduce the labor intensity and improve the quality of the construction of drainage in flowing soil.

This goal is achieved by extracting a trench in the upper part at the depth of the flowing soil, diluting it to the full depth of the trench, and placing the liquefied soil along the trench along the laid drainage pipe. The drains are filled with soil removed from the top of the trench. The subsequent full filling of the trench is carried out with the same soil mixed with liquefied.

The chain tool body is made in the form of cutting elements attached to the side chains for the development of stable and melting soil. Blades are installed on the driven shaft of the chains to liquefy the gumming soil. Between the side chains an additional chain with transporting elements is placed for carrying out of the loosened stable soil from the trench, a window is made for the passage of the additional chain in the frame of the working body, the additional chain is fixed with the possibility of adjusting its length. The pipe layer along the entire length is made with vertical protective plates fixed on its side walls in the upper part. The distance between the free ends of the plates is equal to the width of the working body. Horizontal lateral depressions are located in the lower part of the side walls of the pipelayer.

FIG. 1 is a side view of the pitcher; FIG. 2.- view A in FIG. one; in fig. 3 is a section BB in FIG. one; FIG. 4 shows a section B-B in FIG. one; FIG. 5 is a cross-section of the FIG. t: fig. 6 is a section DD-D in FIG. 1 (the base machine of the plow maker is not shown, in Fig. 1, the dashed line shows the extreme position of the driven sprocket of the additional chain with transporting elements).

The plowing machine contains a base machine (not shown in the drawing) with a scraper body 1 for developing a trench and a pipelayer 2. The pipelayer contains a coil 3c of tape 4 with a longitudinal curl for laying on the bottom of the trench for laying plastic pipes 5

tubular guide 6. compartment 7 with filter mixture, rolls with single-layer filter tape 8 for laying on the filtering sprinkling drains, sheet protrusions

9 to protect stable dry soil poured on the drain from the liquefied soil, dump dumpers 10 for backfilling of the trench with excavated stable soil. The chain tool body 1 consists of side chains having a common drive shaft 11 with common semicircular cutting profiles 12 for cutting soil across the entire profile of the trench and an additional chain 13 with transporting elements 14 for gripping and transporting a stable excavator. An additional chain is installed with a driven shaft fixed above the window 15 in the frame of the working body with the possibility of changing the position of the shaft for

0 adjusting the length of the chain to the desired height of the passages in a stable trench. The window serves for passage-target with conveying elements. On the driven shaft extreme chains with cutting profiles

5, blades 16 are installed to liquefy by mixing at the bottom of the trench of the developed trenching soil with the seeping ground water.

Lower part of the pipelayer

0 and to the level of the top of the laid drain is made in the form of a hollow knife 17 for cutting with smoothing before laying the pipes of the bottom of the trench. On the side walls of the pipelayer along the length above the knife there are horizontal

5 side depressions 18 with the formation of gaps between the pipe layer and the trench walls to accommodate the bottom of the liquefied soil, on the top of the side walls of the pipe layer are vertical

0 protective plates 19 to prevent the developed soil from falling into the gaps of the track.

The knife 17 of the pipelayer 2 consists of a front semicircular wall with a cutting edge along the contour and a semicircular bottom adjoining it, which is located at a length up to the compartment 7 of the filter insulation of the laid drain. From above, the knife matches with hollows of the 18 side walls of the pipelayer.

0 The height of the knife from the bottom of the trench is equal to the height of the valve of the filter mixture.

Pipelayer is installed in the trench with undercutting of the bottom soil by the cutting part of the knife

5 and a snug fit to the cleaned bottom of the trench with a semicircular bottom of the knife. Plates 19 of the side walls of the pipelayer tightly (without a lumen) match the walls of a trench dug in stable ground and developed steady soil 20 unloaded along the road. The liquefied swollen soil 21 is located when the pipe tide moves above the depressions 18 on top of the knife 17 in the gaps between the pipe layer and the trench walls, and also in front of the pipelayer in a face of a trench.

The ribbon path with double laying with longitudinal | fold of filtering belt 4 is designed to protect the sprinkling of the filtering mixture of the laid pipes and to increase the stability of the drainage operation in the soil that has melted. The path consists of coils 3 with tape, a tray for feeding the tape located on the front wall of the filter mix compartment 7, along the periphery of the tape slit, installed on the inner surface of the compartment 7 of a mixture of protective visors to protect the longitudinal edges of the tape 4 against see sprinkled filter mixture.

Another tape path with the laying of a single-layer filtering tape 8 serves to protect the filtering surface of the drain from the swollen soil from above. A guide roller for laying the belt 8 is mounted above the surface of the filtering drain of the drain.

The method of laying drainage and operation of the device is carried out as follows.

Taking into account the hydrogeological conditions of the construction site, the length of the chain 13 in the drip pavement with the transporting elements 14 is adjusted according to the height of the groundwater level during the development of the soil: usually lower than 0.4-0.6 m of the groundwater level and at least 0.4-0.6 m from the bottom of the trench depending on the soil and the operating speed of the draining machine. The driven shaft of this chain is installed by fastening to a new position above the window 15 in the frame of the working body. The chain length is lengthened or shortened. The change in the length of the chain should be Kpatny step installation of transporting elements.

The pipelayer 1 of the pitcher is inserted into the face from an open water intake. The plastic perforated drainage pipe 5, filter tapes 4 and 8 and the filter mixture are charged. The end of the pipe with the underlying and top filter tapes around the filtering dusting of the pipe is removed from the pipelayer and secured at the bottom of the trench.

The plow maker works by moving along a planned track from an open water receiver.

When moving the draining machine, working body 1 develops a stable soil with

fragment of the upper part of the trench profile and the guttering soil, leaving it at the bottom of the trench profile. The top layer of stable soil is cut off by common cutting profiles 12 of side chains 11, then transported and unloaded along the route of movement of the bed draker by transporting elements 14 of the middle chain 13. The lower swollen soil layer located below is cut off by cutting profiles 12 without discharging the soil. The swelled soil being developed to increase mobility and prevent thickening is diluted by mixing with groundwater using cutting profiles 12 and blades 16 of the driven shaft of chains 11. Working body 1 passes through liquefied soil 21 at the bottom of the trench. The liquefied soil 21 is left in the face of the trench in front of the pipelayer.

The movement of the pipelayer 2 in the trench is accompanied by moving the liquefied soil 21 along the bottom of the trench and placing the soil above the knife 17 in the gaps between the pipelayer and the walls of the trench. The laying of the pipe-laying knife into the soil of the trench bottom with a tight fit of the knife bottom to the cut surface of this soil provides impassability of the liquefied soil by contacting the knife-bottom of the trench to the place of laying the drainage pipe 5 with filtering insulation.

The semicircular bottom of the trench, cleared of liquefied soil 21 by the pipe layer 2, is simultaneously placed on the lower filtering belt 4, on it is the filtering dusting with the drainage pipe 5. On top of the dusting is a filtering tape.

The laid drains are covered with dry, developed stable ground 20 from above with the help of dump dumpers 10 from the Motion of the drier layer. The developed stable soil during backfilling is located above the drain between the sheet protrusions 9 of the pipelayer 2, which prevent the liquefied soil 21 from falling on the filter insulation of the drain. After the passage of the protrusions, the liquefied soil, remaining on the vertical walls of the trench on top of the drain, mixes with buried dry developed soil.

With the help of the laid drainage, the construction of the Submerged Ground Underpressure is carried out in the vicinity of the bed grader. providing drainage of groundwater through it. When forced draining of the drainage cell, the lower part of the compartment 7 of the filter mixture at a level not lower than the top of the drainage filler should be filled with the mixture.

Using the proposed method and device, the laying of drainage is carried out with backpressure and continuous closure of the lower cavity of trenches in all successive sections of the donor layer. Liquefied soil 21 creates a back pressure and closure of the bottom part of the trench in the bottom of the working body 1, along the walls of the trench from the sides of the pipe layer 2 and in the backfill,

The closure of the trench cavity is also carried out by the pipelayer knife 17.

Due to the back pressure, the elimination of the opening of the bottom cavity of the trench and the gradual operation of the GWL, the bottom and walls of the trench are prevented from flowing and the stability of the soil is improved. In weak soils, occasional cteRk trench collapses may occur above the level of thinned soil 21. with a smaller mass of collapsed soil and reduced pressure on the pipe layer. The pipe-laying plates 19 retain the collapsed soil and ensure the uniformity of the gaps between the pipe-layer and the trench walls. Improving the stability of stand trenches also contributes to reducing the mass of the developed soil 20 for Bermak Transzei /-./.:. . . , -; ...:; -.; - / ,.

The development of trenches, leaving a liquefied bottom of ground 21 at the bottom, leads to a lower level of wetting. 9 the working body 1 of stable and stable soil 20 is creased and discharged by unloading the transponders of the emitting elements 14 of the chain 13. Reducing the lifting height of the developed flooded soil 21 contributes to reducing the drive power requirement of the working orgay, and the presence of a separate circuit 13 with a spreader It gives an opportunity to increase the force and speed of cutting of the soil by cutting profiles of 12 chains 11.

The drainage pipe 5 with filtering insulation is laid into the soil of natural composition with strengthening of the base and protection of the filter insulation from clogging with the gumming soil. The safety of the filter drains also contributes to its filling with dry soil.

The narrow drainage trench is better filled with a dry, less cohesive ground draining machine due to the decrease in moisture developed by the ground 20 without sticking of the dumpers and the formation of moist clods, without clogging the transhermal formation in it with uneven filling with voids. The backfill with dry soil is completely evenly filled in the trench.

moistened with diluted soil water from the trench walls. Volatility of which backfill acquires sufficient density and strength of the joint with the walls of the trench. The water saturation in the whole soil of the reverse dumping remains the same. before the development of the trench due to the Exclusion of the development of swelled soil on the bed.,. -

The lower part of the soil of the trench walls is less destroyed, and even in case of destruction, the formed cavities and cracks in the walls of the trench are filled during the movement of the pipe layer in the trench.

liquefied soil.

Improving the use of the granulator also contributes to its versatility when it is possible to work both in swelled and in stable soils.

To work in the last driven star Chain point 13. mounted on the driven shaft of the chains 11. The chain with the conveying elements 14 is lengthened. In this position, the working body works with cutting and transporting the soil from the bottom of the trench, as in the known scrapers and dry spreaders.

Technical appraisal and economic advantages of the proposed method and device allow reducing the energy intensity of the operation of the bed donor by reducing the volume and 1 t of lifting the trench on the developed soil, the resistance to movement of the reduced

of the developed soil mass from the road to the trench, increase by 10–15% the productivity of another laying due to the use of released power to increase the operating speed of the bed draker, improve the quality of the drainage laying by increasing the stability of the drainage line, creating fnltroizolyatsii with a given size, without spacing, drainage line, create a ground insulation with the size of the surface of the drainage line, create fnltroizolyatsiya with a given size, without spacing, drain the drain line, create fntroizolyatsii hardened

backfill trench.

 FORUMA; TH 3 ABOUT THIS

1. The method of laying a closed drainage, including the development of a trench with removal of soil beyond the trench to a depth less than the depth of laying the drain, making without excavation below the bottom of the trench cavity for laying the drainage pipe, laying the drainage pipe and reverse

backfilling with excavated soil, characterized in that. what. in order to reduce labor intensity and improve the quality of construction of drainage in flowing soil, the trench in the upper part is torn to the depth of the flowing soil, which is thinned not gradually, spreading it along the walls of the trench above the depth of the drainage pipe and cover the drain with soil removed from the top of the trench, and the subsequent filling of trays is made with the same soil mixed with liquefied soil. 2. A device for laying a closed drainage, including a basic machine with a scraper working unit installed on the frame by means of the driven and driving shaft For developing a trench; pipelayer and backfill of the trench with excavated soil, from it and that for it). In order to reduce labor intensity and improve the quality of drainage construction in fusing soils, the chain working body is designed as cutting elements fixed to the side chains for developing g of stable and fusing soils installed on the driven shaft of the blades to liquefy the flowing soil and placed between additional chain with transporting elements for the removal of loosened stable soil from the trench, and in the frame there is a window for passage of the chain with transporting elements, with this A fully loaded chain is installed with the possibility of adjusting its length, and the pipelayer is made with full protective plates fixed to its side walls in the upper part, the distance between the free ends of which is equal to the width of the working body, and horizontal located in its lower part. lateral depressions. :. L

Claims (2)

Claim 1. A method of laying a closed drainage, including the development of a trench with the removal of soil beyond the trench to a depth shorter than the depth of the laying of the drain, performing without excavation below the bottom of the trench a cavity for laying a drainage pipe, laying drainage pipes and backfilling the trench with excavated soil, characterized the fact that, in order to reduce the complexity and improve the quality of construction of drainage in floating soils, a trench in the upper part is torn to the depth of the floating soil, pro 9 1714054 '10 and plant liquefied ice is not place it along the walls of the trench above the laid Drainage pipe and fill the drain with soil removed from the upper part of the trench, and the subsequent complete filling of the trenches with the same soil mixed with liquefied soil. 2. A device for laying closed drainage, including a base machine with a chain scraper working body mounted on the frame by means of driven and driving shafts for trench development; the pipe-layer and the trench digger with excavated soil, with the fact that, in order to reduce the complexity and improve the quality of construction of drainage in floating soils, the chain working element is made in the form of cutting elements fixed to the side chains for development stable and floating soil installed on the driven shaft of the blades for liquefying the floating soil and placed between the side chains of an additional chain with transporting elements for removal from the trench loosened stable soil, and in the frame has a window for the passage of the chain with transporting elements, while the additional chain is installed with the possibility of adjusting its length, and the pipe layer is made the entire length with horizontal protective plates fixed to its side walls in the upper part, the distance between the free ends of which is equal to the width of the working body, and with horizontal lateral depressions located in its lower part. / · Δ · δ in-33L A A Editor N. Gunko Compiled by I. Balashov " Tehred M. Morgenthal Corrector O. Kundrick Order 667 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5? Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.