Slope / Tunnel / Geotechnical
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Maunsell provides comprehensive services - feasibility studies, design and construction supervision, in the fields of geology, soil and rock mechanics and hydrology covering projects that involve deep excavation, foundations, slopeworks, site formation, roadwork, basement construction, reclamation, drainage and tunnelling, that embrace many types of ground conditions and different construction techniques. |
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i) Slope Works |
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Since 1973 on the investigation of large slope failures, Maunsell has been actively involved in slope related consultancies such as Landslip Preventive Measures (LPM) on government slopes and private features, Landslide Investigation, Natural Terrain Assessment for the government. Our expertise covers: |
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Cantilever retaining walls |
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Reinforced earth walls |
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Reinforced concrete walls |
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Soil nailing |
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Buttress |
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Bored pile / Pipe pile walls |
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Caisson |
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Crib / gabion walls |
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Rock dowels / bolts |
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ii) Tunnels |
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Our tunnel involvement includes feasibility studies, designs, construction supervision, independent checking and tender preparation for tunnels in soft ground, hard rock and mixed ground conditions. Maunsell provides tunnel related services like route selection, portal establishment, excavation method recommendation, construction programming, temporary and permanent support design, pipe jacking design, etc. |
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iii) Site Formation |
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From feasibility study to construction supervision and advice. Our expertise includes: |
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Feasibility and layout studies |
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Site Investigation, planning for borrow / disposal of material |
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Slope formation (soil): stability analysis, drainage design, soil nailing, filling, retaining structures, etc. |
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Rock treatment: excavation methods, kinematic analysis, blasting assessment |
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Embankment design |
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Settlement assessment |
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Contract preparation and construction supervision |
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iv) Foundation |
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Maunsell has extensive experience in the design of all types of piling / footing used in building foundations, elevated road structures, noise barriers, etc. Projects undertaken span the range from the design of high capacity, large diameter bored piles for massive podium developments to mini-pile systems for underpinning. Expertise includes: |
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Large diameter and high capacity piling systems |
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Driven H-piles, pre-cast concrete and tubular steel piles |
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Pile caps |
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Negative skin friction analysis |
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Dynamic pile analysis |
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Pile group assessment |
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Settlement analysis |
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Press-in method of piling |
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>> To see some examples of geotechnical projects undertaken by Maunsell: |
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 West Railway - Tai Lam Tunnel, Hong Kong
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Tung Chung Station Development Package 3 |
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Landslip Preventive Measures |
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Site Formation Works for Residential Development,Beacon Hill, Kowloon |
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Route 9 - Shatin Height & Eagle Nest Tunnels |
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