Boring Machine for Making Horizontal Bores Under the Ground - Trenchless Technology

Narendra Kumar, Scientist, S K Panigrahi, Scientist, Sameer, Scientist
D K Gautam, Retired Scientist, CSIR-CBRI, Roorkee.

Trenchless construction is a method of laying services under the ground without disturbing the surface structures. The imported underground horizontal drilling machines are available in high capacities and suitable for large size bores only. There is a need for making small size bore under the ground in construction industry and no small capacity machine is available. To cater the need, an underground horizontal boring machine has been developed at the Institute, specifically, for construction activities such as laying sewer pipelines, conduits, water pipe line etc. The same has been described in this paper. The machine is capable of making horizontal bores in dry state using open flight auger as well as in wet state using a cutter along with water jet. The developed machine is capable to carry out the under ground jobs effectively which cater the needs of small to medium contractors engaged in building and allied construction activities such as laying sewer pipe lines, conduits, electric cables, water pipe lines etc. under building and roads.

Introduction

Trenchless construction is a method of laying services under the ground without disturbing the structures on the surface. The amount of excavation and the surface repairs are minimized, which are otherwise needed after digging when open trenching is used for laying underground utilities. At present, the installation, inspection, repairs and replacement of underground services involve open trenching construction method, but, these operations are very expensive and slow. The additional cost is also incurred to restore the existing surfaces and repairs resulting from the ground settlement. Beside from the associated high costs, open cut trenching operations often result in high user or social costs due to the disruption to traffic and the adverse impact on nearby area. Trenchless methods allow the installation of most underground infrastructure systems with minimum surface disruption. As per the North American Society of Trenchless Technology, the trenchless construction is a family of methods, materials and equipment capable of being used for the installation of new or replacement of existing underground infrastructure with minimum disruption to surface traffic, business, and other activities. Making bores under the ground using trenchless methods has in general the following major advantages –
  • No hindrance to the activities going on at the surface.
  • Environmental issues are minimized.
  • Safety concerns associated with open cutting are eliminated.
  • Fast and economical.

    The trenchless methods can be divided into two general categories:
  • The installation of new facilities.
  • The inspection, repair and up-gradation of existing facilities.

This section of the article is only available for our subscribers. Please click here to subscribe to a subscription plan to view this part of the article.

Regardless of the tunnelling technology used, tunnel designers decide the future success or failure at an early project stage. In fact, designers are the real managers of tunnel construction. The choice of design together with selected contract model is

Read more ...

Tehri hydroelectric project is located on the left bank of River Bhagirathi in the state of Uttarakhand. Tehri Pumped Storage Project (PSP) comprising 4 Nos of reversible pump-turbine units of 250 MW each, involves construction of an underground Machine Hall

Read more ...

TBM mining in urban areas particularly under low overburden (less than 0.5D, D = tunnel Dia) is a big challenge to design team as well as execution team. While working in a Lucknow metro project, the metro authorities encountered a stretch where TBM had to cross

Read more ...

The term ventilation combines several functions such as smoke extraction, pollution ventilation, and ventilation for environmental purpose. The design of a ventilation system is usually based on three scenarios: During construction: to provide external

Read more ...

In September 2022, the Beijing East Sixth Ring Road Reconstruction Project reported another good news: the CRCHI mega slurry TBM ‘Jinghua’ smoothly reached the intermediate air shaft, marking the project’s achievement. The maximum excavation diameter

Read more ...

TERRATEC celebrated the successful site acceptance testing of two 6.52m diameter Earth Pressure Balance Tunnel Boring Machines (EPBMs) for Uttar Pradesh Metro Rail Corporation (UPMRC) for Corridor-1 of Kanpur MRTS Project (KNPCC-05) in India. The two 6.52m

Read more ...

Tunnelling Asia 2022, organized by TAI, which took place in Mumbai during 27th and 28th June, saw a huge gathering of delegates/engineers from all around the world. The theme of the conference: ‘Underground Space: Need of the Day’ focused on

Read more ...

Dr. Lakshmana Rao Mantri, Assistant General Manager (Designs), and Satya Narayan Kunwar, Project Manager, AFCONS Infrastructure Ltd. , discuss the design and construction challenges of constructing India’s deepest underground metro ventilation

Read more ...

Despite a daunting timeline set by the Paris Accord, zero-carbon tunnels are within reach, provided the right solutions are implemented. Er. Vasileios (Bill) Paoulos, CMT, CMRL, L&T Construction Heavy Civil Infrastructure

Read more ...

Mike A. Sposetti, Global Technical Manager TBM, Underground Construction, Master Builders Solution, Malta, and Manish Gautam, Product Segment Manager - UGC TBM Tunneling Projects, Master Builders Solution, Mumbai, discuss how readily biodegradable

Read more ...

G.B.Nagendra. General Manager - Projects, Konkan Railway Corporation, gives a first-hand experience of the adverse geological conditions encountered during construction of Tunnel T5 of the Katra-Dharam Section of the USBRL Project and the solutions

Read more ...

Vinay Gupta, Director & CEO, Tandon Consultants, discusses the intricacies and issues in the construction of underground metro stations including strata survey during structural design, selection of methods and techniques of construction, traffic management

Read more ...

Pre-injections or injections ahead of the excavation face in underground construction can, in many situations, offer significant advantages. This is particularly the case in difficult ground conditions like severe water ingress or mechanically

Read more ...

Sandvik's fully automatic, DT 922i and semi-automatic, DT 821C jumbo drills are enabling Max Infra to attain lower drilling costs per meter, with higher machine availability during the ongoing construction of the access tunnel

Read more ...

Rakesh Kumar Khali, Project Director-Hydro, Hindustan Construction Company Limited, Mumbai, describes the type of risks involved in underground construction projects, gives important guidelines to the tendering authorities and contractors

Read more ...

Rock excavated in an average tunneling project is often considered waste and mostly finds its way to a landfill. Depending on the geology and excavation method used, the extracted material can have significant quality deviations

Read more ...

Safety in infrastructure sector means preventing accidents, loss and damage to human life and equipment. Being adequately trained and aware of the equipment in use is imperative, especially in the case of heavy equipment

Read more ...

Authors C.P Singh, S.K Ganji, and Madhur Goel elucidate the issues and precautions taken during full face mining, using a TBM for the construction of JPW to Krishna Park Downline Tunnel of Package DC-06. This 5.8 m internal diameter

Read more ...

Uttar Pradesh Metro Rail Corporation Limited Underground Construction On 25 November 2013, LMRCL (now UPMRCL) was incorporated as a Special Purpose Vehicle (SPV) under the Companies Act, 1956. The construction of phase I A of Lucknow Metro (Transport Nagar to Charbagh) started on 27 September 2014

Read more ...

India’s economic growth is closely associated to its energy demand; in fact, India is the 3rd largest energy consumer in the world. A robust growth is expected in the country’s oil and gas sector, which will make the sector

Read more ...

×
Sign-up for Free Subscription
'India Construction Week'
Weekly e-Newsletter on Construction Industry
Get the latest news, product launches, projects announced / awarded, government policies, investments, and expert views.
Click here to subscribe.