Experimental complex for research of the soil thrust process with correction of boring trajectory

Authors

  • S. P. Balesniy Department building and road machine, Kharkov National Automobile and Highway University, Petrovskogo str., 25, 61002, Kharkov, Ukraine, Ukraine

Keywords:

Trenchless technology, service lines, horizontal well, plant, soil thrust boring, motion trajectory, trajectory correction.

Abstract

Abstract. Lately soil thrust boring technique has been widely used for construction of the service lines in urban areas all over the world. The deflection of the trajectory of the working body from the designed one is one of the disadvantages of the traditional technique of soil thrust boring by the  conic  working body,  especially  in the soil  with a different density.  Thus, the research of the  ways to improve the accuracy of the  soil thrust boring  is a topical issue.  A review of the researches  and technical  solutions allows to  find out  the  trends in development of trenchless technique of service lines by soil thrust boring with correction of the trajectory. The idea of correction of soil thrust boring trajectory and structures of the plants for implementation of this method have been received. The steerable soil thrust boring by horizontal directional drilling is a difficult and expensive process, which is effective for curve trajectories and long boring distances over 100 m. For relatively short distances (from 15-20 to 100 m) a rectilinear trajectory is required. It is difficult to obtain such condition for a number of reasons; it was proposed to research the possibility of the correction of trajectory by using quite a simple plant for implementation the translation motion and in some cases to provide the rotation motion in order to change the position of the slanted soil thrust head by the specific hydro cylinder with built-in screw gage. The aim of the research is to justify scientifically the parameters and features of the soil thrust boring equipment with active correction of the boring trajectory, which were received from experimental data using the equipment for implementation of the research process in natural soil condition. Conclusion. According to the results of the tests which were carried out at the test site of “NPP “Gaztehnika” the operability and unique design of the power plant, which allows to create translation motion of the connecting rods and in some cases to provide the rotation of the connecting rods and soil thrust head were confirmed. Using the experimental plant it was found out that the soil thrust boring by rotating conical working body is 1.5…2 times less than by the static soil thrust boring. 

Author Biography

S. P. Balesniy, Department building and road machine, Kharkov National Automobile and Highway University, Petrovskogo str., 25, 61002, Kharkov, Ukraine

postgraduate.

References

Vazetdinov A.S. Opyt opredelenija usilij vnedrenija i mestopolozhenija v grunte golovnogo snarjada pri prokole [Experience of determination of the thrust boring force and location of the soil thrust boring head in the soil during the well development]. Vodosnabzhenie i sanitarnaja tehnika. – Water supply and sanitary equipment. 1971. no. 4. pp. 21–26. (in Russian)

Vasil'ev S.G. Podzemnoe stroitel'stvo neglubokogo zalozhenija [Underground construction of shallow emplacement]. L'vov: Vishha shkola, 1980. 144 p. (in Russian)

Ipatov N.K., Chizhov V.V. O vybore formy golovki gruntoprokalyvajushhego snarjada [About the selection of the form of the soil thrust head]. Izvestija vysshih uchebnyh zavedenij. Serija «Stroitel'stvo i arhitektura». 1971. no. 4. pp 114 – 117 (in Russian)

Oleksin V.І. Vibіr ta obґruntuvannja parametrіv robochogo obladnannja ґruntoprokoljujuchih ustanovok dlja stvorennja gorizontal'nih sverdlovin kombіnovanim metodom [The selection and substantiation of parameters for work equipment of soil puncturing plants to create horizontal wells by combined method] PhD dissertation. Kharkіv. 2013. 200 p. (in Russian)

Penchuk V.A. Vintovye svai i ankera dlja opor [Screw piles and anchors for supports]: monografija / Penchuk V.A. – Doneck: izd-vo «Noulidzh» (doneckoe otdelenie). 2010. 179 p. (in Russian)

Penchuk V.A. Vintovye svai i ankera dlja opor [Screw piles and anchors for supports] / Penchuk V.A. – Kiev: Budіvel'nik, – 1985. – 96 s. (in Russian)

Poltavcev I.S., Orlov V.B., Ljahovich I.F. Special'nye zemlerojnye mashiny i mehanizmy dlja gorodskogo stroitel'stva [Specific earthmoving machines and mechanisms for urban construction]. K.: «Budіvel'nik». 1977. 136 p. (in Russian)

Rogachjov A.A. Obosnovanie konstruktivnyh parametrov i rezhimov raboty ispolnitel'nogo organa upravljaemoj prokalyvajushhej ustanovki [Justification of the design parameters and operating modes of the working body of the steerable soil thrust plant] PhD dissertation.Tula, 2007. 135 p. (in Russian)

Suponev V.N., Oleksin V.I., Vivchar S.M. Trebovanija, vydvigaemye k parametram gorizontal'nyh skvazhin i jeffektivnost' bestranshejnyh metodov ih razrabotki [The requirements to parameters of horizontal wells and effectiveness of trenchless method of their development] .Vestnik HNADU. Sb. nauch. st. Kharkov. 2014. Issue 65–66. pp. 102 – 107. (in Russian)

Published

2016-04-26

Issue

Section

Lifting and transport, construction and road machines and equipment