Any cool knowlege about "collapsing slopes"

How to prevent Collapsing Slopes?

以下是其中三個prevent Collapsing Slopes的方法:

Access and Safety Precautions

Many slopes and retaining walls are high and steep, and care should be taken with personal safety when inspections are carried out. Safe access must be provided for maintenance inspections, including access stairways and safety loops where necessary. Where the slopes or retaining walls are high and steep, it is prudent for the maintenance inspections to be carried out by at least two persons.

Measures, such as installation of lockable gates or other barriers to access stairways, may have to be provided to prevent unauthorized entry. In this case, a notice should be fixed on the gate to indicate where the key can be obtained, together with contact telephone numbers in the event of an emergency.


Slope of Routine Maintenance Inspections

Typical features of slope and retaining wall that require maintenance are illustrated in Figure 1. As a minimum, it is recommended that Routine Maintenance Inspections are carried out to ascertain the need for basic maintenance works items, including :

(a) clearance of accumulated debris from drainage channels and slope surface,
(b) repair of cracked or damaged drainage channels or pavement,
(c) repair or replacement of cracked or damaged slope surface cover,
(d) unblocking of weepholes and outlet drain pipes,
(e) removal of any vegetation causing severe cracking of slope surface cover and drainage channels,
(f) re-grassing of bare soil slope surface areas,
(g) removal of loose rock debris and undesirable vegetation from rock slopes or around boulders, and
(h) repair of missing or deteriorated pointing in masonry walls.


Need for Immediate Engineer Inspection for Maintenance

During Routine Maintenance Inspections, particular note should be taken of anything considered to be unusual or abnormal, such as widening cracks, settling ground, bulging or distortion of a masonry wall or settlement of the crest platform.
These defects or observations must be reported promptly to the owner or party required to maintain the land, who should then appoint a professionally-qualified geotechnical engineer without delay to undertake an immediate Engineer Inspection for Maintenance, and to recommend any necessary actions.

一個有關prevent Collapsing Slopes的網址： http://www.ust.hk/~webpepa/pepa/special_topics/slope/index.htm

以上網址有防止山泥傾瀉的防治工作及措施( english web site )

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collapsing slopes mean land slide