Secure tamper resistant safety net support system and assembly

A secure and tamper resistant safety web assembly for a ground level hatch frame opening over a subterranean chamber horizontal affixable within hatch frame walls, said hatch frame opening including at least two opposed substantially vertical wall portions, said safety web assembly affixable at said opposed substantially vertical wall portions, said safety web assembly including a web and means to support said web, said web having an open work structure;

• including a first end and a second end;
• a first side and a second side;
• a strong continuous edge along it periphery;
• and a span substantially the length and the width of said hatch frame opening, said means to support said web having a first part and a second part, each part having a length to engage within said one of said vertical wall portions, each said part affixable at one of said opposed substantially vertical wall portions, each part including means to guide one said web side to slide within one said length of one of said first or second parts, link means, said link means extending from said respective web sides and linking said peripheral edge of said web to said means to guide said web to slide, each side and end of said web forming a corner, releasable latching means extending from each said corner, said releasable latching means when all engaged securing said web from uncovering said hatch frame opening, stop means at said first and second parts to secure said linked web sides web from disengagement from said means to guide, and link eyes to receive said releasable latch means to fix said web securely in place.